Keyless lock.



L. S. HENDRICKS.

KEYLESS LOCK. APPLICATION FILED DEILG, 191].

1,261,932. Patented Apr. 9,1918.

anbzntoz 20 Lewis E.Hanc1ric1 5,

45 I and gdisclosingcertain;-additional' parts of LEWIS SMITH HENDRICKSfOFlMOUNDSVILLE, ,wEsI' VIRGINIA;

' "KEYLESS LOCK;

Specificationcf Letters Patent."

Patented'AprIQ, 1918:

Application filed December 6, 1917, SerialNo. 205,849.

To all whom it may concern 7 Be it known that L-Lnwrs SMITH HEM BRICKS, a citizen of the United States, and a resident of Moundsville, in the :county of Marshall'and State of West Virginia, have invented a certainnew and useful Improvement in Keyless Locks, of which the fol-low--- ingis a specification n The present invention relates) to, locks, and more particularly to certainimprovements in that type-known as padlocks." I

An object of the'presentiinvention is to provide a lock which be manipulated Without the use ofa key;- a lock WhiCh-can-i not be picked or opened by-an unau hor d, person; a lock which is substantial a-ndcaw"; oable of. withstanding considerable strain lock: which embQdiesthestructure requiring; 7 not only the operation of certain of itsp'arts: in. predetermined directions and sequence,

but which also requires the certain DOSllIlOD-e ingor turning over of the body of the lock;

for effecting, the operation} of certain gravity 1' actuated elements of the locklstructure. T

The inventionalso aims at the provisionof alock of this-type whichembodies the; above enumerated characteristics, and which I at the same. time is of relativelysimple and economical construction c V The above; and various, other objectsiand" advantages of this inventionwi-ll be in part described, vand in part understood, from the 9 following detailed description of" thepres: ent preferred embodiment, 'the sameebeing illustrated I in the r; accompanying: I drawing, wherein z v I c Figure 1; is a frontelevation of a l ek constructed, according to,,,thepresent inven-a tion. I v V Fi i a longitudinal-section: tnk lrin edgewisedirect-ion through-v the dock, show-g inn-the sh-ackletthereot in.locked nosition-s Fig.6 is a longitudinal: transverse; section taken through the lock centrally thereofa-fi Fig. 4 is a view similanto'FigaQr, inverted,

the-leeks. mechanism in section, and Showing; e dementsrof; that-sleek. Jill' '1li 613-.Sdil30$itli tiQIIS-.;-.; I 7 s Belie zring ,:to:- thevedrawv=ing 10, '4 designates: ll tfilflcfiti121,2;- of ajlock which, the-present ng; i stance; isrof: e ongated substantiallw rectanga r ine-construction andeaglanted to be "closed. atits open side by a plate 11., The-infirmity lqrisproritledt withranaopel i e ni one-end,

per .endof the lock. Arranged longitudinally Within the casing 10 is a wall orflange 12 located at one side of the opening in the casing and extending throughout the length of. the casing. A web 13 of substantially L form is arranged in one of the lower corners of the casing and .forms a supportingshoulder. The web 13 extendsto a point. near the longitudinal axis ofthecasing and formsa chamber into which a key may be inserted:

through: a key-hole slot 14 formed in thei I cover, plate 1'1. If desired the casinglO may berprovidedrwith guards/15 within the-web 13 jadapted-rtoengagethe wards of a key: whichmay be, inserted through the slotl l in an "attempt to rma-liciously :openthe lock The guards-lti maybe constructed to prey vent the rotation oftl ordinaryikey S a to mislead; unauthorized partiesyrtampering with the look into believing the. lookwrequire siaespecial key; v V

Slidable-within the casing lQisi a shackle 16., ;The shackle 16 has a long leg 17 extend-Z ing into the casing 10 against the guide- 121 and has a short leg 18 projecting but a short distance into the openingof theorising-when, the; shackle is closed. The longleg-l? is: 7. provided, near its outer end, with-a, .projece? tion .19. in the form of a guard which extends toward the axis of the. short arnm-18v and is spaced: sufficiently below theqsanie toadinitr free access to; and from :theloop cit-the.- shackle.v we The casing-110: and the cover plate. 11 a-re-recessedat opposite sidesto conform:: to theloop-o the'shaekle when theilatte'n is ClOlSedai" 1 Thelongileg 17 ot the shackle has arlongiia'. tudin al OpeningintoWhich slidably engages-:.-; ail-guide; pin 20, the latter being riwetedsor: otherwise suita-bly'secured 'iIithe'JO erre-dge r of the casinglO andextendingythroughouits the entirelengththereofiand slightly above-=1, the casing. The-guide rod-2.0- has; a: spring 21,015 preferably the-helical type,:su-rrotmclmg thebase portion of. the rod" and adapted;

totbearqat itszfree end against the arm-11 to a I 111m thfirsfilllEk ebeing PplVOtEd. npon a;

tially; inter c longi ud nal U; he-ea ing- Ihel mh YerrZ as a. largedhead'on rveightron;oneend adapt to? To ,lockithe' sltaCk-lev againstzupwardmovee; O 5

extending downward at angle to seat against a shoulder or projection formed upon the lower end and inner side of the leg 1?. The spring 21 urge *l e leo 1? upward and binds the shoulc or against the gravity latch lever, which latter is held "from releasing th siackle by the shonleer l3, and also by the i clined nose or" the e n late 1. A locking lever 25 is pivoted on a transverse pin 27 in the upper corner of the easing over the shoulder 13 and opposite t the 17. The locking lever extends longituoinally Within the casino; and has a shouldered end 28 l) beneath the short leg 18 and an o osite reduced arm 29 er:- tending downvvar in the casing and adapted to swing toward and from the Weight or head of the latch lever 22. The head of the lever 22 has upwardly facing shoulder 0 formed by notching' the outer end of the for the reception of the arm 29 thereagainst to retain the le 2: 1

'roni swing- 8. r. leaf he casino spring 31 is i below the pir- 3 against the are I the head of the late).

The shackle 16 is orznaly retained rom.

dovvnvvaro movement age 3 t the tension or" the spring 21 by a lockinx it sea ed in a groove formed in he outer end of the shackle and extending ed -eivise through t 1e same. The said slot is preferably no i cut or of dove tail for in and the l olt 32 is of corresponding form, the olt having its upper edge elite upper edge or the siackle ends conforinino' o he to appear as a a longitudinal through which A cured transversely tween the edrges. length to lie flush moved up by the so 2% of the latch. T o he slid into position with its the edges of the shackle, which posi ion the bolt 32 engages over the free one or the rod and LClClS the shackle from down Ward inovenient over the rod operatioin when the parts are locked as shown in 2 and 3 the shackle 16 cannot be moved inward as the bolt 32 bears against the guide rod and cannot be drawn outward as the nose of the gravity latch lever hears against the shoulder 250% the shackle and the head of the latch lever rests against the snoulder 13. The arrangement is such the shouleer 13 is not essential ever from releasing the leg 1?. Therefore, any attempt to Withdraw the shackle is resisted by the nose E l as it binds against its pivot 23 and prevents upward movement of the leg 17 To release the shackle it is necessary first to slide the bolt into the aosition shown in 4; for releasing the guide rod 20. The shackle 16 may be now forced inward against the tension of the spring 21. The

short arm 18 engages the end 28 of the locking lever and retracts its arm 29 trom the The movement of the latch lever turns the shoulder 36 thereof out i the oath of arm 29,, so that the shackle may now be drawn outward and the arm ntay bear idly agai ist the curved peripheral surface of the Weighted head.

To lock the shackle again, it is only necesary to turn the casing 10 into upri ht position nd to force the shackle 16 down over tie guide rod 26 and against the spring 21.

gs the shouldered proie nose 2% of the gravity same about its pivot to o perinit the nose to rise a. The shackle is now rel i ring 21 raises the same contact with the gravity ll tch lever and at the s time releases he locking lever 26. The l cking lev r 26 is urged by its spring 21 into inteixocking engagement with the latch level. The bolt 32 is now slid into cl sed position over the ene or the rod 20 a: d prevents tl-e releai e or the parts,

is or course understood th t various cha: gee and -odnations may he made in the details or construction and design the above specifically described parts of this invention Without departing from the spirit tlereor", the chages and modifications being restricted oly by the scope of the follo ing claims l. in a lock, the combination of a casing,

shackle slidable in the casing, a gravity atch lever pivoted in the casing adapted to ngage the shackle to prevent withdrawal of sl ackle and being adapted to be released rorn by a movement of the shackle and preventing said movement or the overturning" of the casing, and means for latch lever pivoted in the casing for interlocking engagement with the shackle to prevent release thereof, a locking device for said latch lever normally engaging the same to hold it in the path of the shackle and having a part in the path of the shackle, and a spring engaging the shackle to normally urge it into interlocking engagement with the latch lever and out'of contact with the locking device. o

3. In a lock, the combination of a casing, a shackle mounted in the casing, a gravity actuated latch lever pivoted in the casing and adapted to engage the shackle to prevent release thereof, and a locking lever pivoted in the casing adapted to engage said latch leverto hold it from disengagement relative to the shackle and having a portion in the path of the shackle adapted for engagement thereby upon a predetermined movement of the parts. i

4c. In a lock, the combinationo'f a casing,

shackle for releasing said a shackle slidablein the casing, alatch lever pivoted in the casing and adapted to engage the shackle to hold the latter from withdrawal from the casing, a locking lever pivoted in the casing for interlocking engagement with the latch lever to hold it aga'mst the shackle and having apart in the path of the shackle to be engaged thereby when the shackle is moved inward for releasing the locking lever from the latch lever, and means on the shackle normally holdingthe latter from inward movement.

5. In a lock, the combination of a casing, a shackle slidable'in the casing and having a shoulder, a gravity latch lever in the cas- ,ing for engagement with the shoulder to hold the shackle from withdrawal, a locking lever in the casing adapted for'interlocking engagement with the latch lever to hold the latter against said shoulder and having a part lying in the path of the shackle to be engaged thereby when the shackle is movedinward to release said shoulder from the latch lever and release the locking lever from the latch lever, whereby said latch lever when the casing is overturned being adapted to swing out of the path-of the shoulder, and means for normally retaining the shackle from inward movement.

6. In a lock, the combination with a casing, a shackle slidable in the casing and having a long leg and a short leg, a guide rod secured to the bottom of the casing and slidably projecting through the long leg, a spring surrounding the base of the rod to normally urge the shackle outward, a gravv ity latch lever pivoted in the casing for interlocking engagement at one end with said long leg and a spring being adapted to yieldingly hold the long leg against said lever, a locking lever pivoted in the casing and having one end for interlocking engagement with the latch lever when engaging said long leg, and having an end lying in the path of said short leg of the shackle to be engaged thereby when the shackle is moved inward against the tension of said spring, and a bolt slidably mounted in the outer end of the shackle adapted to engage the outer end of said guide rod to hold the shackle from inward movement.

LEWIS SMITH HENDRICKS.

Gopiu at this patent may be obtained for five cents each, by addressing the Commissioner oi intents,

Washington, D. O." 

